Operation Manual

Simrad SH80
26
850-164385 / Rev.C
Seine circle
This is a useful aid in planning the shooting of the purse seine. It
is used as follows:
1. Press the Gear button.
- The purse seine circle will appear on the forward end of
the ship symbol on the corresponding side of the vessel
selected in the Setup menu. The circle will follow the
vessel’s movements.
2. At the moment the seine is shot, press the Gear button
again.
- The purse seine circle will remain stationary and
indicate the ideal path for setting the seine. Three
square symbols on the ship’s course line indicate the:
shooting, one half, and the end of the seine positions.
Three different nets can be pre-programmed in the
Gear menu.
3. Press the Gear buttontodeletethePurse Seine circle.
Trawl symbol
This is a useful aid in providing an overview of the trawl
operation.
Trawl data can be set manually using the menu or automatically
by interfacing the Simrad FS trawl sonar or ITI trawl
monitoring system with the sonar.
 In the manual mode the trawl symbol will be displayed with
the selected size, depth and distance.
 When the FS900 or FS3000 trawl sonar is connected, the
trawl symbol will automatically be displayed with the correct
depth in the vertical modes.
 When the ITI trawl system is connected, the trawl symbol
will be displayed with the correct distance, bearing and
depth. If required, the trawl opening, ambient water
temperature, and trawl-filling indicator may also be
displayed.